Turbine.



A. J. ROWAN & J. A. LAUX TURBINE.

APPLICATION PILfiI) JAN. 30, 1908.

7 901,385. Patented Oct. 20, 1908.

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witnesses A. J.- ROWAN & J. A.-LAUX.

TURBINE. APPLICATION rnmxml'zlsu; 190a.

Patented 001;. 20, 1908.

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ANDREW"J.- IOWAN"AND JOHN a- LAUX, OFTREMONT, PENNSYLVANIA.

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Patented Oct. 20, 1908,:

' Application-died iai eeieoa. Ser1alNo.41 .3,'-i45.

To all whom'it may concern:

Be it known that we, ANDREW J. ROWAN and JoHN A. LAUX, residing at Treinont, in the county of Schuylkill and State of Pennsylvania, have invented a new and useful Improvement inTurbines, of which the fol-- lowing is a specification.

This invention relates to-a turbine and has forits object a device of this kind driven by impact of steam delivered into staggered ockets. i

The object of this invention is an engine of this type which shall be very sim le in construction, with ver 'few parts an those of a durable nature an which if desired can be emplo ed in any position and is also especial y adapted for use in connection with motor driven vehicles.

The'inve'ntion consists of the novel-features ,of construction hereinafter described, pointed out in the claims and shownin the accompanying drawings in which Figure sectional elevation; Fig. 3 is a transverse section on the line 3-3 of Fig. 2. Fig. 4 is a section on the line 4'4 of Fig-2.

In constructing our engine we employ two flanged cylinders 1 which may or may not.

' be rovided with a bed-plate,1according to t e manner of use of the engine, and the flanges 2 of these cylinders are bolted together and are also recessed as shown at 3 for a purpose which will appear later;

Within the cylinder formed by the two cylindrical sections above described we place a solid piston 4-which is divided into two sections. by a circumferential rib 5 formed midway its ends, which rib fits in and rotates within the recess 3. This rib forms a acking and prevents creeping of any steam etween the surfaces ofthe .iston 4 and the inner face of the cylinder. Jpon the piston 4 on each side of the rib 5 weform in the piston a set of staggered pockets 6 the two sets being opposite y arranged, thereby providing for t 0 ready reversal of the turbine. These. ockets have straight walls at their .forwar ends and are rounded at their rear ends, and are cut so as to gradually deepen from rear to front. Each set consists of two rows arranged circumferentially about the piston, the pockets of onerow overlapping those of the other. e

A valve casing 7 is sup orted by the cylinder 1 and arrangedin t e same is an or. dinery slide valve 8 provided withopemngs 1 isa side elevation. Fig. 2 is a vided with branches 10 w rich aline respectively withpipes 11 The pipes 10 ment with each other u on opposite sides of the valve casing 7, and t 1e openings 9 and 9 -'are so arranged that when the opening 9 registers with two of the said pipes the opening 9" 'is out of alinemen't with the other pipes 10 and 11 and the valve 8 prevents communication between them. By shifting the. valve by means of 'a suitable lever 8 steam may be admitted to either of the )ipes 11 and consequently to either set of poo ets. The pipes 11 carried by one ipe 11 open respectively into the pockets 0 one set, and upon one side of the cylinder and the pipes llcarried'by the other pipe 11 open upon the o iposite side of the easing into the opposite y arranged pockets of the other set. The direction of rotation of the engine will depend upon the set of pockets into which the steam is admitted. Suitable exhaust ipes 12 are provided for each set of pockets. These pipes are so arranged that steam received by any ocket Wlll be carried only about one-eight i of a revolution about the piston shaft 13 and will then be exhausted. The shaft 13 is provided with a worm gear 14 which meshes with a gear 15. Or power may be taken from the shaft, 13 in any other desired manner.

i It will be noted from the construction of the ockets that they present at their rear no radial wall-against which the steam can kick back, also that dead steam is not carried a long distance around the shaft but is exhausted within about'onc-eighth of a revolution, the impact of the steam only being made use of. It will also be noted that by overlapping the pockets a pocket in one row will receive an impact and commence to fill with steam before a pocket in the. same set but in the other row has cleared the ipe 1.1 discharging. steam into it. By tiis means a continuous steam pressure is kept upon the piston and it is not necessary to depend upon momentum to bring the pockets into registi'y aving thus fully described our invention, what we claim as new and desire to secure by Letters Patent, is z 1. Adevice of the kind described comprising a cylinder a piston fitting closely therein full length of the cylinder,

and extending the y pockets formed insets of two rows each being provided with branchesand'11 open in aline- 9 and 9'. I A steam suppl pipe 10- is proproduced upon the surface-of the dpiston, the

nge J eight said sets being oppositelyiarra th'e pockets oi eaehset being formed in parallel rows and staggered with respect to eachv other,

meansfor admitting steam to pockets 'of both rows of a set at the same time, and meansifor exhausting steain from said pockets when the iston has made approximately onelief a revolution. t 2. A turbine consisting of a cylinder formed in two sections the said sections being flanged and bolted tofether, au'annular'reeess bemg formed in sei flanges, episton fitting-in and A extending the fulllength of the cylinder, at

piston, said rib fitting in '15 the recess above mentioned, o

rib carried by said positely arranged: pockets formed upon t e opposite sides of the rib, and means for adnitting steam to andexhausting steam from either set of said pockets.

ANDREW J; ROWAN.

JOHN A. LAUX;

Witnesses: HARRY O. HAAG W-(J. Dorris.-

piston on. 

